Disk activity in new Mac Pro

Discussion in 'Mac Pro' started by Roller, Sep 22, 2010.

  1. Roller macrumors 68020

    Jun 25, 2003
    The past week, I've been noticing frequent, repeated disk access in my 2010 Mac Pro, even when it's otherwise idle. Activity Monitor shows no unusual processes, and I've disabled Spotlight indexing. Any thoughts?
  2. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    Have you taken a look at Activity Monitor > Disk Activity and seen how much data was written or read?
  3. davelanger macrumors 6502a

    Mar 25, 2009
    Mine does this as well.
  4. SpookyLars macrumors 6502

    Jul 21, 2008
    Same here. I have no idea what's going on... :confused:
  5. Roller thread starter macrumors 68020

    Jun 25, 2003
    Not a lot of data. The accesses last a second at most and always have the same pattern. That is, the sound that the disk makes is almost identical every time.
  6. DualShock macrumors 6502

    Jun 29, 2008
    Take a look at system.log in Console (/Applications/Utilities). By default Console auto-refreshes the currently open file when it is written to, so you can see what is going on in real-time.

    Maybe something is writing to the system log, possibly due to a misbehaving process or something similar.
  7. Roller thread starter macrumors 68020

    Jun 25, 2003
    Old thread, I know, but I'm posting in case this might help someone with a similar problem:

    The problem got worse over time, and I never could identify a software problem. So I eventually replaced the drive and the computer's fine now.
  8. JavaTheHut macrumors 6502


    Aug 15, 2010
  9. Roller thread starter macrumors 68020

    Jun 25, 2003
    Good question - I should have included that.

    It was a Hitachi Deskstar 7200 RPM 2TB drive that came with the Mac. But I haven't heard of any widespread problems with this drive, so maybe it was just something flaky with mine. I posted because it hadn't really occurred to me until recently that the drive was at fault - I thought it was a rogue background process or something similar.

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